here's abc's tahman bradley. >> reporter: fiscal cliff talks have hit a stalemate. with only 29 days to go, republicans and democrats remain far apart. and over the weekend, there was worry negotiations may actually fail. >> i think we're going over the cliff. it's clear to me they made a political calculation. before president obama and his team are demanding that they allow bush era tax cuts for the wealthiest 2% of americans expire. >> there's no way we can govern this country with those low rates in place for future generations. those rates have to go up. >> reporter: but republicans have drawn a line in the sand in raising tax rates. instead, signaling they're open to raising revenue by limiting the tax code. it's a major sticking point. holding up a deal. >> right now, i'd say we're nowhere. >> reporter: president obama is looking for $1.6 trillion in new tax revenue over ten years. speaker boehner is offering half of that. there's $600 billion. the speaker says that's not enough. although he hasn't outlined what he thinks should be cut. if they can't avoid th